OpsCenter ports reference

OpsCenter ports reference for setting firewall rules

Use the OpsCenter ports reference for guidance when configuring firewall rules. The ports
reference provides details for the default port numbers used by OpsCenter, Lifecycle
Manager, and DataStax Agents. The ports are set to defaults. The configuration options and
file or UI locations for overriding port defaults are indicated in the description column of
the following table.

Table 1. OpsCenter Ports

Port/Protocol

Source

Destination

Description

8888/TCP

Management workstation

OpsCenter server

OpsCenter web-based user interface. The opscenterd daemon
listens on this port for HTTP requests coming directly from the browser.

JMX monitoring port. Each agent opens a JMX connection to its local node (the
DataStax Enterprise process listening on this port). The JMX protocol requires that
the client then reconnect on a randomly chosen port (1024+) after the initial
handshake.

Note: It is not necessary to set this local port for
firewall purposes.

SSL. The port on which to serve SSL traffic. The opscenterd
daemon listens on this port for HTTPs requests being redirected from port 8888. The
SSL port is the alternative UI/API port when SSL is
enabled. When SSL is on, 8888 redirects to 8443 and serves no
content.

DataStax agent port for DataStax agents http/https service. The agents listen
on this port for TCP traffic initiated by OpsCenter. Depending on the OpsCenter and
Agent configuration, traffic is either http or https protocol.

Package proxy port in LCM for DSE installs. Default port for the Lifecycle
Manager package proxy for downloading software installation packages for DataStax
Enterprise and its dependencies such as Java.

Configure in the Package Proxy section of the Config
Profile in the Lifecycle Manager UI.

Hadoop: Hadoop Job Tracker website port. The Job Tracker listens on this port
for HTTP requests. If initiated from the OpsCenter UI, these requests are proxied
through the opscenterd daemon; otherwise, they come directly from
the browser.